#include<stdio.h>
int main(){
	 double down=100;

	 double back =down/2;
	 int n;//次数
	 for(n=2;n<=10;n++){
	 	down=down+back*2;

		back=back/2;	 	
	 }
	 printf("第10次落地经过%f米\n",down);
	 printf("第10次反弹%f米\n",back);
	 return 0;

}